Match the following lenses/mirrors with their correct applications.
Column-I (Lenses/Mirrors): i. Concave mirror, ii. Convex mirror, iii. Convex lens, iv. Concave lens
Column-II (Application): p. Used in cameras and projectors for focusing light, q. Used in correcting myopia (short-sightedness), r. Used in vehicles for rear-viewing, s. Used in shaving to produce magnified upright image
Select the correct matching option:

Correct option is A

The correct answer is (a) i-s, ii-r, iii-p, iv-q

Explanation:

• Concave mirror (i-s): When an object is placed close to it, it forms a magnified upright image, making it ideal for shaving or dental mirrors.
• Convex mirror (ii-r): It provides a wide field of view and always forms an erect, diminished image, which is why it is used as a rear-view mirror in vehicles.
• Convex lens (iii-p): It is a converging lens used in cameras and projectors to focus light and form real images.
• Concave lens (iv-q): It is a diverging lens used to correct myopia (short-sightedness) by diverging light before it hits the eye's lens.

Information Booster:

• The power of a convex lens is positive, whereas the power of a concave lens is negative.
• Convex mirrors are also known as "diverging mirrors," while concave mirrors are "converging mirrors."

Additional Knowledge:

i-r (Option c)

• Incorrect because a concave mirror cannot be used for rear-viewing as it often forms inverted images of distant objects.

So the correct answer is (a)